--- version: rssac002v3 service: a.root-servers.net start-period: '2021-04-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5383258067 dns-udp-queries-received-ipv6: 1158086369 dns-tcp-queries-received-ipv4: 290793349 dns-tcp-queries-received-ipv6: 99619016 dns-udp-responses-sent-ipv4: 5335486404 dns-udp-responses-sent-ipv6: 1177449458 dns-tcp-responses-sent-ipv4: 277400030 dns-tcp-responses-sent-ipv6: 99721880